Warping and beaming machine



G. SIPP.

WARPING AND BEAIVIING MACHINE.

APPLICATION FILED APR-9,1917.

Patented Dec. 27, 1921.

2 SHEEVTs-SHEET 1.

lI/VENTOR,

. G. SIPP. WARPING AND BEAMING MACHINE. APPLICATION FILED MII. 9. |911.

INI/Huron, T SING,

' Amm/vw WITNESS patear GRANT vSIIII?, OF PATERSON, NEW JERSEY.

WARPING AND BEAMING- MACHINE.

Application filed April 9,

To all whom t may concern:

Be lit known that I, GRANT SIPP, a citizen of the United States,residing at Paterson, in the county of Passaic and State of New Jersey,have invented certain new and useful Improvements in Warping 'andBeaming Machines, of which `theY following is 'a specification. f

This invention relates to the beaming of warps or the like. The rotationof the reel in beaming machines is usually resisted by a brake strap topreserve a certain needed tension on the warp. Ordinarily the brakestrap is held taut by a weight, the inertia of which, if it is heavyenough to maintain the required tension, is frequently responsible forbreakage of the threads if the machine is suddenly started. My object isto avoid this,'and I accomplish this object by employing an elasticelement to resist the tendency of the brake-strap or equivalent toadvance, as an incident of friction, withfthe reel. My invention furthercontemplates and makes possible more facile operations inobtaining'adjustments of the braking resistance and finer degrees `of,adjustment of such resistance than are incidental to the use of weights.My invention further contemplates providing for an equalized brakingresistance being applied to the reel at both sides thereof, so that thewear on the reelbearings will'be equalized and the -recl v thereforekept alwaystrue.

Another object'of-the invention is to construct and arrange the brakestrap or band so that, when the machine is adapted also for warping and(as sometimes is the case) no braking resistance is wanted, it may beshifted clear of the reel.

In the accompanying drawings,

Figure l shows a warping and beaming machine provided Ywith the improvedbraking` means;

' ig. 2 is plan of the'frame of the ma' chine and certain parts of thebraking means; n

Fig. 3 is'a front elevation of the anchorage bracket for the fixed endof the brakestrap;

Fig. 4 is a fragmentary front elevation ofthe tension lever; and,

Fig. 5 shows an adjusting means.

a is the frame of a warping and beaming Specification of Letters Patent.i

Patented nec. a7, i921.

1917. Serial No. 160,627.

machine of the so-called Swiss type, and b is the reel journaled inbearings cl therein. The reel, in warping, is driven in the usual mannerby the friction wheel d shiftable by operating the treadle e intocontact with the friction band f of the reel, said fric tion wheel beingdriven from thev means g at thebeaming end of the machine by lthesprocket-and-chain transmission h," in beaming the reel is Vdriven bythe pull of the .warp vas it winds on the beam z', which is rotated bythe means g. j

The brake strap j'mayrconsist, as is frequently the case, of a metallicstrip lined with leather or the like ;..in the present case it issti'ened at one end by a strip y" for a reason to be explained.

As an anchorage means for one end of this strap I provide the elongatedbracket or standard cwhich is pivoted to the frame at Z on an aXisparallel with that of the reel and projects upmore or lless close to theperiphery of the band f thereof; the metallic strip of the brake-straphas one end thereof suitably clamped to the bracket lc. The bracket isprovided with a lateral projection m whichoverhangs the upperv sur-yface of the frame, being equipped with a set screw n .which may be madeto bind down against said surface to hold the bracket in such positionthat the brakestrapr extends without distortionfrom the bracket to theperipheryofthe band f.. A

' In a bracket' o on the top of the frame is arranged a short shaft pwhich affords .at

its ends a fulcrum for a' U-shaped lever g having an arm r to which thefree end of the brake-strap is clamped by suitable means. In theconstruction herein actually shown the elements '76,' j, 7c, and g, withtheir accessories, are duplicated, there being one set at each side ofthe reel.-see'Fig. 2, showing the parts g and 7c and their accessoriesduplicated.

Fulcrumed in each bracket 0, preferably on shaft p, isa lever sdepending well downwardly and having a threaded stud t projectingtherefrom through an extension g of the adjoining leverV g. Y On eachside ofsaid extension there is arranged on said stud a nut u; byadjusting these nuts, leaving them clamping the extension of lever gbetween them, the angular relation of the levers g and s may be altered.The two levers s are connected at their` lower en-ds by a bar y.

1t will be seen that the levers Q and s, with the bar y, constitute alever structure having levers or lever parts (Q and s) adjustable withreference to each other around their common jlulcrum j) in the bracketso.

The means `ior manually shifting this lever structure consists or' a nute which is journaled in a stand w and a rod a having a threaded end a"engaged with the threading ot the nut, its other end being secured tothe cros`s-bar y, connecting the lower ends of the levers s, at aboutits mid-point; the

` nut may have a hand-wheel o 'for turning it. A spring e tends normallyto move the lever structure in the direction to release thebrake-straps.

Y An important element of my invention, as already indicated, istheemployment of elastic means to resist the tendency ot the brakestraps orequivalent to advance, as an incident of their rictional grip on thereel, with the` latter.V ln the present, instance the elasticity ispresent inthe lever structure, and particularly the long bar y which,being held by the rod :c at its center, is to a certain extent leXibleand may yield at its ends in response to the pull of the brakestraps onthe arms r of levers g as an incident to their friction-grip on therotating reel. It the machine is suddenlystarted up the stress on thewarp threads is absorbed by the lever structure; thus breakage of thewarp threads, so common where the inertia of dead weights must beovercome on suddenly imposing` a strain on the threads, is avoided.

By the described means oradjustably imposing a strain on thebrake-straps the iinest degrees of adjustment may be obtained by asimple and conveniently eiected manipulation; adjustment may be effecteceither by nut o or nuts u, or both, as conditions require. Byduplicating the braking means and applying the braking resistance atboth sides or" the reel an equalized braking resistance is applied suchas will avoid torsion oic the reel and keep it true to its bearings.

V'There the machine is also adapted tor warping itmay in some eases bedesired to allor7 the reel to rotate without braking resistance. ln sucha case, the nut o is turned to move the lever structurecounter-clockwise, tending to elevate the brake-straps clear of thebands 7. rThe strips j give rigidity to the straps at this time as totheir end portions which are attached to the lever structure, which,taken with the fact thatk the brackets 7c extend well up to the reelbands f, inst 1e the straps against falling toene side out of embracingrelation to the reel bands.

racines An importantifeature oi my invention is the placing ot' thebrakingpressure-adjusting element 0) at the beam end oi the machine,whereby the operator can set the tension to a nicety. without leavingthe position required vfor starting and stopping the beam driving meansg, the usual controlling treadle tor which is shown at 2, Fig. 1.

Having thus fully described my invention, what 1 claim as new and desireto secure by Letters Patent is l. 1n a machine ofthe class describedhaving a rotary member whose rotation is to be resisted, the combinationkof a supporting structure and mechanism therein to resist rotation ofsaid member including a brake device to rictionally contact with saidmember and means to resist movement of said device with said member dueto friction between them including a iiexible elastic lever structure;said supporting struc* ture having means to support said member with itsaxis parallel with the fulcrum of said lever structure.

2. 1n a machine of the class described having a rotary member whoserotation is` to be resisted, said member having around its axis a pairof spaced braking surfaces, the combination of a supporting structureand mechanism therein to resist rotation of said member including a pairof brake devices to -rictionally contact with said surfaces, and meansto resist movement of said devices with said member due to frictionbetween said devices and surfaces including a bar, spaced leversconnected by and each having its axis parallel with said bar, means toconnect said levers with said devices and means to connect the bar at apoint therein between said levers withl said supporting structure.

3. 1n a machine of the class described having a rotary member whoserotationis to be resisted, the combination ofasup-V porting structureand mechanism therein to resist rotation of said member including abrake device to i'rictionally contact with said member and means toresist-movement of said device with said member due to friction betweenthem including a pair of levers arranged in said supporting structureand fulcrumed on a common axis, means to change the angularity of oneof. said levers with reference to the other, the brake device beingconnected with one lever, and means to connect the other lever with saidsupporting structure. y

a. ln combination, a supporting structure, a rotary member ournaledtherein', a brakestrap having braking contact with `said member, ananchorage bracket forthe brake-V strap pivoted Yin said` structure andprojecting toward't-he periphery of said member and having one end or'the strap attached to its. free end portion, and means, attached to theother end of the strap, for exerting tension on the latter.

5. In combination, a supporting structure, a rotary member journaledtherein, a brakestrap having braking Contact With said member, ananchorage bracket for the brake-strap pivoted in said structure on anaxis parallel with the axis 4of rotation of said member and projectingtoward the periphery of said member and having one end vl0v of the strapattached to its free end portion, and means, attached to the other endof the strap, for exerting tension on the latter.

In testimony whereof I aiiiX my signature.

GRANT SIPP.

